提交 29ba8c8a 编写于 作者: M Martin Peres 提交者: Ben Skeggs

drm/nouveau/bios: fix a potential NULL deref in the PROM shadowing function

Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NMartin Peres <martin.peres@free.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
上级 9044fa60
无相关合并请求
......@@ -183,10 +183,11 @@ nouveau_bios_shadow_prom(struct nouveau_bios *bios)
goto out;
bios->data = kmalloc(bios->size, GFP_KERNEL);
if (bios->data) {
for (i = 0; i < bios->size; i += 4)
((u32 *)bios->data)[i/4] = nv_rd32(bios, 0x300000 + i);
}
if (!bios->data)
goto out;
for (i = 0; i < bios->size; i += 4)
((u32 *)bios->data)[i/4] = nv_rd32(bios, 0x300000 + i);
/* check the PCI record header */
pcir = nv_ro16(bios, 0x0018);
......
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